This is the strangest serial I've ever seen because of one strange circumstance. Gene Autry's goal is to make it back to Radio Ranch to do his song on the radio every day. The problem with that is he destroys an entire civilization and kills everybody in it to do it. Talk about a distorted set of priorities. Old Gene needs to get his moral sense in gear. Saving an entire civilization from destruction is more important than singing on the radio! Gee! Gosh! Golly, Batman! Who thought this one up!
As to the rest of the serial, it's got some decent action and an acquaintance interest (you can't call it a love interest, Gene doesn't seem interested enough for that). There's also some strange goings-on with some boys living at the ranch. But old Gene is seemingly oblivious to it all, as long as he gets back each day in time to sing his song. It hardly seems worth it, since his singing isn't that good. For a good singing cowboy watch one of the Roy Rogers movies on this site or perhaps 'Renfrew of the Royal Mounted'. The lead in that, James Newell, has a fabulous baritone voice and sings some good songs such as 'Barbeque Bill'. It's on archive.org